Alcatel Internetworking, Inc.

Edward Spang

Arthur L Zaifman

Stephen J Ciavaglia

Edward C Szajner, Jr

&ldquo;Per memory&rdquo; atomic access for a distributed memory multiprocessor architecture is provided by marking bit masks for shared memories to indicate the access privileges of processors to the memories. A processor has access privileges to a shared memory if the bit mask retained for the memory is marked at a bit position reserved for the processor and does not have access privileges if the bit mask is not so marked. A bit mask is permitted to have only one mark at a given time to guarantee that access to each shared memory is atomic.

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Nashua, NH, United States of America

Edward Spang